77,086 results match your criteria: "Peking Union Medical College; Beijing[Affiliation]"

Multimodal mass spectrometry imaging reveals spatial metabolic reprogramming in diabetic liver disease.

Talanta

March 2025

Key Laboratory of Mass Spectrometry Imaging and Metabolomics (Minzu University of China), National Ethnic Affairs Commission, Beijing, 100081, China; Center for Imaging and Systems Biology, College of Life and Environmental Sciences, Minzu University of China, Beijing, 100081, China; Key Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy, Minzu University of China, Beijing, 100081, China.

Diabetic liver injury (DLI) is a significant complication of diabetes mellitus, leading to severe liver dysfunction and non-alcoholic fatty liver disease (NAFLD). Understanding the metabolic alterations and reprogramming in DLI is critical for identifying therapeutic targets. Despite the prevalence of DLI, its underlying metabolic mechanisms remain poorly understood, and effective treatments are lacking.

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Two new cyclopentanoid monoterpenes from the fruits of .

J Asian Nat Prod Res

March 2025

State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.

Two new cyclopentanoid monoterpenes, catalpovatins A-B (-), together with nine known compounds (-), were isolated from the fruits of G. Don. The structures of these compounds were elucidated based on their spectroscopic data.

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Purpose: Obstructive sleep apnea (OSA) is a recognized cardiovascular risk factor, yet the benefits of intervention remain uncertain due to the heterogeneity among OSA patients. We aimed to explore the association of OSA with cardiovascular outcomes in acute coronary syndrome (ACS) patients with dual risk of elevated remnant cholesterol (RC) and low-grade inflammation indicated by high-sensitivity C-reactive protein (hs-CRP).

Methods: This study is a post-hoc analysis of OSA-ACS project enrolled 1833 ACS patients from January 2015 to December 2019, who underwent a sleep study, categorized into four groups by median levels of RC and hs-CRP: RC and low-grade inflammation risk (RCIR), low-grade inflammation risk (LDIR), RC risk (RCR), and no residual risk.

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MRI-based neuroimaging alterations in immune-related skin diseases: a comprehensive review.

Arch Dermatol Res

March 2025

Department of Laser Surgery, Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, China.

The skin, as the largest organ in the human body, serves as the primary physical barrier and plays a crucial role in the immune defense process. Immune-related skin diseases encompass a spectrum of complex dermatological conditions characterized by aberrant immune responses, including the production of autoantibodies and dysregulation of inflammatory mediators. Growing evidence suggest a heightened prevalence of comorbid neuropsychiatric disorders among patients with immune-related skin diseases, indicative of potential shared pathogenesis.

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Introduction: The incidence of heart failure (HF), a cardiovascular disease, has been widely reported to be gradually increasing. Although the triglyceride-glucose (TyG) index is associated with the risk of HF, this relationship may be affected by differences in nutritional status among individuals with varying levels of obesity. Waist circumference combined with the TyG index may be more accurately associated with HF.

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Immunosenescence and interactions for lymphocyte deep immunophenotyping.

J Transl Med

March 2025

National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, No. 1 Dahua Road, Dongdan, Beijing, 100730, P.R. China.

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Baseline total lung capacity and all-cause mortality in restrictive pulmonary disorders: a meta-analysis.

BMC Pulm Med

March 2025

National Center for Respiratory Medicine, State Key Laboratory of Respiratory Health and Multimorbidity, National Clinical Research Center for Respiratory Diseases, Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Capital Medical University, Beijing, China.

Rationale: Forced vital capacity (FVC) has been utilized as a surrogate for vital capacity (VC) in monitoring the progression of restrictive pulmonary disorders, particularly in clinical trials of idiopathic pulmonary fibrosis (IPF). A dose-response relationship between decreased FVC and mortality in IPF has also been established. Since 2005, total lung capacity (TLC) has been routinely required to differentiate and diagnose restrictive pulmonary disorders.

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Rapid progression of right ventricular dysfunction: a case report.

BMC Cardiovasc Disord

March 2025

Department of Cardiovascular Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, No. 277 Yanta West Road, Xi'an, 710061, China.

Background: Arrhythmogenic cardiomyopathy (ACM) is a genetic myocardial disease characterized by progressive myocyte loss and fibrofatty (fibrous and adipose) tissue replacement to predispose these patients to fatal ventricular arrhythmias and impairment of ventricular systolic function. The relationship of ACM and myocarditis has gained significant attention.

Case Presentation: This case presented a 28-year-old female who was admitted to the hospital with complaints of recurrent lower limb edema and palpitations for 6 months.

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Objectives: The aim of this paper is to assess the current clinical application of targeted therapy in colorectal cancer (CRC), identify factors influencing patients' acceptance of targeted therapy, and evaluate its impact of targeted therapy on patients' health-related quality of life (HRQoL).

Methods: This study was based on a national multi-center survey. From March 2020 to March 2021, involved 19 tertiary hospitals across seven regions in China through multi-stage stratified sampling.

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Integrated single-cell and spatial transcriptomic profiling reveals that CD177 Tregs enhance immunosuppression through apoptosis and resistance to immunotherapy in hepatocellular carcinoma.

Oncogene

March 2025

Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, NHC Key Laboratory of Liver Transplantation, Research Unit of Liver Transplantation and Transplant Immunology, Chinese Academy of Medical Sciences, Nanjing Medical University, Nanjing, China.

Regulatory T cells (Tregs), an immunosuppressive subpopulation of CD4 T cells, are prevalent in tumor tissues, where they impede effective antitumor immune responses and represent potential targets for immunotherapy. However, targeting tumor-infiltrating Treg cells (TiTregs) remains challenging. In this study, we identified CD177 as a biomarker specifically expressed in TiTregs but not in adjacent or peripheral Treg cells through single-cell transcriptome sequencing combined with a stringent screening strategy.

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Although significant progress has been made in the development of antidepressants, a large subpopulation of individuals remains unresponsive to existing treatments. Ginsenoside Rg1 (Rg1), a natural compound with well-defined antidepressant effects and low-cost administrations, holds therapeutic promise but requires mechanistic elucidation for clinical translation. Based on our previous finding that Rg1 rescued astrocytic connexin43 (Cx43) downregulation in depression models, we investigated its brain-wide effects and molecular mechanisms in chronic unpredictable stress (CUS)-induced rats.

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Epiconone, one novel cyclohexenone from endophytic fungi Epicoccum sp. 1-042.

J Antibiot (Tokyo)

March 2025

CAMS Key Laboratory of Synthetic Biology for Drug Innovation, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, People's Republic of China.

Targeting drug-resistant Acinetobacter baumannii, two fungal strains, Epicoccum sp. 1-042 and Penicillium sp. 19-115, were identified from 35 fungi isolated from Tibet.

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Macrophages are immune cells belonging to the mononuclear phagocyte system. They play crucial roles in immune defense, surveillance, and homeostasis. This review systematically discusses the types of hematopoietic progenitors that give rise to macrophages, including primitive hematopoietic progenitors, erythro-myeloid progenitors, and hematopoietic stem cells.

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Imaging diagnosis of cryptogenic multifocal ulcerous stenosing enteritis.

Insights Imaging

March 2025

Department of Ultrasound, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.

Objective: This study aimed to summarize the intestinal ultrasound (IUS) and computed tomography enterography (CTE) features of cryptogenic multifocal ulcerous stenosing enteritis (CMUSE) and compare the performance of IUS and CTE in the evaluation of CMUSE in a single tertiary center.

Methods: Clinically or pathologically confirmed CMUSE patients between December 2009 and April 2023 were recruited. Imaging features of CMUSE patients who underwent both IUS and CTE were summarized retrospectively.

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Purpose: Radioiodine (I) adjuvant therapy (RAT) is given to treat subclinical tumor of differentiated thyroid cancer (DTC) that may or may not actually be present after prior adequate treatment, yet the indications and benefits for RAT remain controversial. This multi-center study retrospectively evaluated the real targets and responses to RAT in intermediate- and high-risk patients, aiming to refine current "one-size-fits-all" guidelines.

Methods: Totally 599 intermediate- and high-risk DTC patients from three centers were enrolled.

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The burden of acute respiratory infection in children under 5 attributable to economic inequality in low- and middle-income countries.

BMJ Glob Health

March 2025

National Center for Respiratory Diseases; State Key Laboratory of Respiratory Health and Multimorbidity; National Clinical Research Center for Respiratory Diseases; Institute of Respiratory Medicine, Chinese Academy of Medical Sciences; Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, China.

Background: Quantifying the disease burden among children that could potentially be reduced through improvements in individual economic status and regional economic equality can greatly benefit policy making and resource allocation. However, such quantification has rarely been done. This study aimed to assess the inequality-related burden of acute respiratory infection (ARI) (the leading cause of child mortality in low- and middle-income countries (LMICs)) among under five children.

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Esophageal cancer (EC) is a gastrointestinal cancer with high morbidity and mortality, along with a low 5-year survival rate, which urgently requires the discovery of new drugs for prevention and treatment. Our previous studies have found a novel EGFR-targeted fusion protein-drug conjugate, Fv-LDP-D3-AE, which exhibits significant inhibitory activity against esophageal cancer. However, the effectiveness of monotherapy still faces major challenges in clinical translation for esophageal cancer treatment.

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Astrocyte gap junction dysfunction activates JAK2-STAT3 pathway to mediate inflammation in depression.

Pharmacol Biochem Behav

March 2025

Guangdong Pharmaceutical University, Guangdong, 510006, China; School of Pharmacy, Hunan University of Chinese Medicine & Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction; State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China. Electronic address:

Connexin 43 (Cx43) is highly expressed in astrocytes and forms gap junctions that maintain intercellular communication. Dysfunctional gap junctions in astrocytes exacerbate depressive symptoms, which has been implicated in the pathogenesis of depression. Inflammatory responses occur in the brains of most people with depression.

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Piperlongumine induces ROS accumulation to reverse resistance of 5-FU in human colorectal cancer via targeting TrxR.

Eur J Pharmacol

March 2025

Provincial Engineering Laboratory for Screening and Re-evaluation of Active Compounds of Herbal Medicines in Southern Anhui, School of Pharmacy, Wannan Medical College, Wuhu, Anhui 241000, P.R. China. Electronic address:

Resistance is a major concern for colorectal cancer patients undergoing chemotherapy. Piperlongumine (PL) has been proven to effectively reverse drug resistance in several types of cancers; however, the mechanisms associated with the reversal effect and the targets of PL in cancer drug resistance are still unclear. In this research, the reversal effects and associated mechanisms of PL in 5-Fluorouracil (5-FU) resistance colorectal cancer were investigated both in vitro and in vivo.

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Three Decades of Photodynamic Therapy for Glioblastoma: A Comprehensive Scientometric Analysis.

Photodiagnosis Photodyn Ther

March 2025

Cancer Center, Department of Neurosurgery, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China. Electronic address:

Background: Photodynamic therapy (PDT) has emerged as a promising adjunctive treatment for glioblastoma (GBM), yet a comprehensive bibliometric analysis of this field is lacking. This study explores research trends, major contributors, and hotspots in PDT for GBM to provide an integrated overview of its development.

Methods: Literature from 1993 to 2024 was retrieved from the Web of Science Core Collection.

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Background: Suboptimal diet results in significant health and economic burdens. However, the global economic costs of dietary risks remain unclear.

Objective: This study aimed to estimate the macroeconomic burden of 15 dietary risk factors in 204 countries and territories from 2020-2050.

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Previous studies have shown that CCL2 concentration is higher in cerebrospinal fluid than in plasma of health and human immunodeficiency virus (HIV) infected individuals, suggesting an extra source of CCL2 in brain. Brain cellular CCL2 has been broadly studied in cultured cells and its in-vivo cellular distribution has been investigated in rodent experimental autoimmune encephalomyelitis model. However, its cellular distribution in grey and white matter (GM, WM) remains elusive.

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Lactoferrin-modified organic-inorganic hybrid mesoporous silica for co-delivery of levodopa and curcumin in the synergistic treatment of Parkinson's disease.

Phytomedicine

February 2025

State Key Laboratory of Bioactive Substance and Function of Natural Medicines Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050 PR China. Electronic address:

Background: Parkinson's disease (PD) is a chronic neurodegenerative disorder primarily characterized by oxidative stress and dopaminergic neuron damage. While levodopa remains the cornerstone of PD treatment, its efficacy is limited by poor bioavailability and neuroprotective effects. Curcumin, a potent antioxidant derived from turmeric, demonstrates neuroprotective promise but also suffers from low bioavailability, hindering its therapeutic application.

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Background: Gastrointestinal bleeding is a serious adverse event of coronary artery bypass grafting and lacks tailored risk assessment tools for personalized prevention.

Objective: This study aims to develop and validate predictive models to assess the risk of gastrointestinal bleeding after coronary artery bypass grafting (GIBCG) and to guide personalized prevention.

Methods: Participants were recruited from 4 medical centers, including a prospective cohort and the Medical Information Mart for Intensive Care IV (MIMIC-IV) database.

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Background: In addition to standard older adult care services, mobile medical devices have proved to be an effective tool for controlling the health of older adults. However, little is known about the variables driving the acceptance of these gadgets and the willingness of older adults in China to use them.

Objective: This study aims to explore the factors that affect the use of mobile health (mHealth) devices by older adults in China, focusing on individual, social, and family influences.

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